Design Mode kills my site

As usual I enabled Customization Mode.

Looking for something than i disabled it.

After disabled my site shown like that


But my original website like this.


I enabled “Customization Mode” again. and sign out.

its seems ok but how can i fix this problem?

i try checking with and my other browsers.

Did you clear the cache after you turned the mode off?

i clear and try again.

Noting changed.